Pitman-rod for organs



(NoModel.)

L. P. BOYD.

PITMAN ROD PoR ORGANS.

INo. 537,914.

Patented Apr. 23, 195.

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/NVENTOH WITNESSES.'

UNITED STATES PATENT OFFICE.

LEE F. BOYD, OF MARION, ASSIGNOR OF ONE-HALF TO ROBERT D. PETERS,

PITMAN-ROD FOR ORGANS.

SPECIFICATION forming part of Letters Patent No. 537,914, dated April23, 1895.

Application filed December I9, 1894. Serial No. 532,324. (No model.)

T0 all whom, t may concern:

Be it known that I, LEE F. BOYD, a citizen of the United States,residing at Marion, in the count-y of Grant and State of Indiana, haveinvented certain new and useful Improvements in Pitman-Rods for Organs,of which the following is a specification.

My said invention relates to the operating mechanism for organs; and itconsists especially in improvements in the form and construction of thepitman rods or tracker pins by which the valves are operated from thekeys.

Said invention will be first fully described, and the novel featuresthereof then pointed outin the claim.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters and figures of reference indicate similarparts, Figure 1 is a sectional' view through the key-board of an organshowing, in the main, an ordinary mechanism, and Fig. 2 is a detial Viewof my improved pitman rod or tracker pin separately.

In said drawings the portions marked A represent parts of the frame-Workof an organ; B, a reed-case, containing the reeds; O, a valve; D, a key;E, my improved pitman rod or tracker pin; F, various parts of a couplermechanism, and G apush button for throwing coupler mechanism into andout of operation. All these parts, except the pitman E, are or may be ofany ordinary or desired construction, and, not being peculiar to mypresent invention, will not be further described herein, exceptincidentally in describing said invention. Said pitman rod E instead ofbeing formed of wood, and non-adjustable, as has been common, is in themain formed of metal. It is threaded at each end, as shown, and carriespreferably wooden buttons c and e2 at the top and bottom ends thereof.At an intermediate point it has an enlargement e, which is alsothreaded, and carries a preferably wooden coupler button e3. This pitmanrod, being of metal, can be made very small, and consequently theperforations (as at l and 2) through which it passes, may be madecorrespondingly small, which is of advantage, especially in the case ofthe perforation at 2, for the reason that less air can escape and bewasted. The rod being of metal is also not affected by changes in theatmosphere, to any appreciable extent; and particularly it is notsubject to become swelled in moist weather, which sometimes causes thewooden rods heretofore used to stick in the openings through which theypass. In all cases the least size makes the least friction, which makesthe instrument play much more easily and freely. Being threaded at theends, the buttons c and e2 are adjustable, so that the rod as a Wholemay be lengthened or shortened, and the dip of the keys therebyregulated. The coupler buttons e3 can also be adjusted as desired. Theenlargement e is of great advantage, as by its use the coupler button escan be moved freely on and off the rod until it comes to suchenlargement, and can then be tightly screwed thereon, and this makes itmuch more convenient to assemble and disassemble these parts, and, whenassembled, they will firmly stay in place.

Besides the advantages of metal over wood, heretofore mentioned, themetal is proof against the ravages of mice and insects. The smallerholes make the organs easier to pump on account of the smaller waste ofair, and said smaller holes also prevent dust and dirt from being drawnthrough and clogging the valve.

In the illustration, Fig. l, the construction is shown as it appears incases where my improved pitman rod is applied to a new organ. It canalso conveniently be applied to an old organ by inserting plugs 3 and etin the larger orifices which are left when said wooden pitman rods areremoved.

IIaving thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination, in an organ, with the valve, key, and couplermechanism, of a me tallic pitman-rod, screw-threaded at the ends, andprovided with preferably wooden adjustable buttons which come inimmediate contact with such valve and key, and also having an enlargedand screw-threaded central portion, and a coupler button mounted on saidenlarged portion, substantially as shown and described.

In witness whereof I have hereunto set my hand and seal, at Marion,Indiana, this 15th day of December, A. D. 1894..

LEE F. BOYD. [1.. s]

Witnesses:

AMANDA HAMAKER, H. G. HAMAKER.

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